Designed for safe flammable gas monitoring in explosive atmospheres, the GTYQ-AT0502 holds complete explosion and dust ignition proof certification to meet strict industrial safety standards. It integrates a standard light and sound alarm module with on-site expandable interfaces, ensuring timely and clear alerts once abnormal gas concentration is detected.
The dual-wire wiring structure brings convenience to installation and retrofitting projects, while the digital sensor component can be replaced directly without field calibration, greatly reducing maintenance difficulty and downtime. Boasting an IP66 ingress protection level, it performs reliably in harsh outdoor and indoor environments with severe dust and water spray. This model is compatible with XBUS 2-wire and HBUS 4-wire detectors, offering flexible replacement options for old system upgrades. It is suitable for natural gas and LNG monitoring scenarios, and provides stable, low-maintenance detection solutions for petrochemical, metallurgical and urban gas pipeline projects.
Sensor Specification
Sensor Type
Measuring Gas
Measuring Range
Operating Temperature
Typical Life
Response Time
Catalytic Type
Combustible gases
0~100%LEL
-40°C ~ +70°C
36 month
<15sec / 90% scale
Sensor Features
Linear Output
Output signal shows a good linear relationship with gas concentration, enabling precise concentration readings.
High Stability
Minimal performance fluctuations during long-term use, ensuring reliable detection results.
High Sensitivity & Fast Response
Quickly captures gas concentration changes and triggers timely alerts.
Broad-Spectrum Capability
Detects most flammable gases and flammable vapors (e.g., hydrogen (H₂), methane (CH₄), propane (C₃H₈), ethanol vapors, etc.).
Poisoning Resistance
Exhibits certain tolerance to common poisoning substances (e.g., silicon, lead compounds) with low consumption.
The GTYQ-AT0502 is designed to detect a broad spectrum of flammable gases and vapors, including Methane (CH₄), Propane (C₃H₈), Hydrogen (H₂), Isobutane, and Ethanol vapors.
Does the sensor require field calibration after replacement?
No, the digital sensor component of this model can be replaced directly without the need for on-site field calibration, significantly reducing maintenance time.
Is this gas detector suitable for harsh outdoor environments?
Yes, it features an IP66 ingress protection rating and an aluminum alloy housing, making it highly resistant to severe dust and water spray in both indoor and outdoor settings.
What are the alarm capabilities of this unit?
The unit integrates a standard light and sound alarm module (50mA) to provide immediate and clear alerts upon detecting abnormal gas concentrations.
What are the explosion-proof ratings for this detector?
The GTYQ-AT0502 is certified with an Ex db IIC T6 Gb rating, ensuring it meets strict safety standards for explosive and dust-ignition atmospheres.
What wiring systems is this model compatible with?
It features a flexible dual-wire structure and is compatible with XBUS 2-wire/4-wire and HBUS 4-wire systems, making it ideal for both new installations and retrofitting old systems.
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